CN102546357B

CN102546357B - Message forwarding method and network device

Info

Publication number: CN102546357B
Application number: CN201010581127.9A
Authority: CN
Inventors: 薛莉; 陈国义; 何路友; 石梯君
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2010-12-09
Filing date: 2010-12-09
Publication date: 2014-12-17
Anticipated expiration: 2030-12-09
Also published as: EP2634978B1; CN102546357A; EP2634978A4; US20130266008A1; WO2012075871A1; EP2634978A1; US9300490B2

Abstract

The embodiment of the invention provides a message forwarding method and a network device which are applied to a system comprising a source node, a destination node, a first device and a second device, wherein a first logic channel L1 and a second logic channel L2 are respectively established between the source node and the first device and between the source node and the second device, and a third logic channel L3 and a fourth logic channel L4 are respectively established between the destination node and the first device and between the destination node and the second device. The message forwarding method comprises the following steps: using the second device to receive a message which is sent to the destination node through a universal tunnel, wherein the message carries service data and one of L1, L2, L3 and L4 identifiers; and inquiring a logic channel mapping relation which is pre-configured in the second device according to the identifier carried in the message, determining a forwarding channel as the L4, and sending the service data in the message to the destination node through the L4, wherein the logic channel mapping relation is the mapping relation between the logic channel corresponding to the identifier and the L4. The number of ICB PWs (inter-computer buffer pseudo wires) can be reduced by using the technical scheme disclosed by the invention.

Description

Message forwarding method and the network equipment

Technical field

The present invention relates to communication technical field, particularly a kind of message forwarding method and the network equipment.

Background technology

In the actual deployment of network, the reliability of transfer of data is the important measure index of evaluating network, at present can by improving the reliability of transfer of data across frame redundancy scheme.As shown in Figure 1; PE1 (supplier edge device; Provider Edge; be called for short PE) and PE2 belong to a redundancy protecting group; for the protection of the upstream equipment of described redundancy protecting group to CE1 (customer edge; customer edge; be called for short CE) between link; wherein, PE1 is connected by pseudo-line PW1 and PE3, is connected by direct link AC1 and CE1; PE2 is connected by pseudo-line PW2 and PE3; connected by direct link AC2 and CE1, assuming that AC1 is active link, AC2 is reserve link.It should be noted that; a pseudo-line between PE1 and PE3 is illustrate only in Fig. 1; a pseudo-line between PE2 and PE3; and pseudo-line and business are bound one by one; if transmit polytype business datum between the upstream equipment of Current redundant protection group to CE1; then there are many pseudo-lines between corresponding PE1 and PE3, between PE2 and PE3, have many pseudo-lines.

Prior art sets up ICB PW between PE1 and PE2; every bar ICB PW (protecting pseudo-line across frame) and type of service are bound one by one; PE3 can be advertised to after PE1 detects active link AC1 fault; switched by PE3 trigger protection; before pretection switch performs; PE3 sends the path of business datum to CE1 and comprises: PE3 by Packet Generation to PE1; the label (being assumed to the label of PW1) of line pseudo-between PE1 and PE3 is changed to the label of the ICB PW that this business is bound by PE1; then be transmitted to PE2 by ICB PW, PE2 is transmitted to CE1 by AC2 again.

Prior art has following shortcoming:

ICB PW of the prior art must bind one by one with business, when a CE needs to carry out multiple business, multiple ICB PW can be set up between PE1 and PE2 accordingly, and ICB PW passes through manual configuration, so when a large amount of PW of needs, configuration effort amount is very large.

Summary of the invention

The embodiment of the present invention provides a kind of message forwarding method and the network equipment, can reduce the quantity of ICB PW.

In view of this, the embodiment of the present invention provides:

A kind of message forwarding method, be applied in the communication system comprising source node, destination node, the first equipment and the second equipment, wherein said destination node and source node be dual homed described first equipment of access and described second equipment respectively, described source node and between described first equipment and the second equipment respectively set up have the first logical channel L1 and the second logical channel L2, described destination node and between described first equipment and the second equipment respectively set up have the 3rd logical channel L3 and the 4th logical channel L4, comprising:

Described second equipment receives by the universal tunnel set up in advance between described first equipment and the second equipment the message mailing to described destination node, and described message carries one in the mark of business datum and described L1, L2, L3 and L4;

Logical channel mapping relations pre-configured in described second equipment second equipment according to the identified query carried in described message, the forwarding channel determining to forward business datum in described message is L4, wherein, the logical channel of described pre-configured logical channel mapping relations corresponding to described mark and the mapping relations of L4;

Business datum in described message is sent to destination node by described L4 by described second equipment.

A kind of message forwarding method, be applied in the communication system comprising source node, destination node, the first equipment and the second equipment, wherein said destination node and source node dual homed access described first equipment and described second equipment, described source node and between described first equipment and the second equipment respectively set up have the first logical channel L1 and the second logical channel L2, described destination node and between described first equipment and the second equipment respectively set up have the 3rd logical channel L3 and the 4th logical channel L4, comprising:

First equipment receives the first message of source node transmission from L1, and described first message carries the mark of business datum and L1;

First equipment is when L3 fault, and logical channel mapping relations pre-configured in the first equipment according to the identified query of described L1, determine the mark of the logical channel with the mark of described L1 with mapping relations;

First equipment sends the second message by the universal tunnel set up in advance between described first equipment and the second equipment to the second equipment, and described second message comprises described business datum and has the mark of logical channel of mapping relations with described L1.

A kind of message forwarding method, be applied in the communication system comprising source node, destination node, the first equipment and the second equipment, wherein said destination node is dual homed described first equipment of access and described second equipment respectively, described source node and described first equipment room are set up the first logical channel L1, described destination node and between described first equipment and the second equipment respectively set up have the second logical channel L2 and the 3rd logical channel L3, comprising:

Described second equipment receives by the universal tunnel set up in advance between described first equipment and the second equipment the message mailing to described destination node, and described message carries one in the mark of business datum and described L1, L2 and L3;

Logical channel mapping relations pre-configured in described second equipment second equipment according to the identified query carried in described message, the forwarding channel determining to forward business datum in described message is L3, wherein, the logical channel of described pre-configured logical channel mapping relations corresponding to described mark and the mapping relations of L3;

Business datum in described message is sent to destination node by described L3 by described second equipment.

A kind of message forwarding method, be applied in the communication system comprising source node, destination node, the first equipment and the second equipment, wherein said destination node dual homed described first equipment of access and described second equipment, described source node and described first equipment room are set up the first logical channel L1, described destination node and between described first equipment and the second equipment respectively set up have the second logical channel L2 and the 3rd logical channel L3, comprising:

First equipment is when L2 fault, and logical channel mapping relations pre-configured in the first equipment according to the identified query of described L1, determine the mark of the logical channel with the mark of described L1 with mapping relations;

A kind of network equipment, comprising:

First Transmit-Receive Unit, for by the described network equipment and and the universal tunnel set up in advance between another network equipment of same redundant entity group of the described network equipment receive the message mailing to destination node, described message carries one in the mark of business datum and the first logical channel L1, the second logical channel L2, the 3rd logical channel L3 and the 4th logical channel L4; Wherein, the first logical channel is the logical channel of source node and another LA Management Room described; Second logical channel is the logical channel of described source node and described LA Management Room; 3rd logical channel is the logical channel of described destination node and another LA Management Room described; 4th logical channel is the logical channel of described destination node and described LA Management Room;

Forwarding channel determining unit, for logical channel mapping relations pre-configured in the network equipment according to the identified query carried in described message, the forwarding channel determining to forward business datum in described message is L4, wherein, the logical channel of described pre-configured logical channel mapping relations corresponding to described mark and the mapping relations of L4;

Second Transmit-Receive Unit, for sending to destination node by described L4 by the business datum in described message.

The first equipment in embodiment of the present invention redundant entity group mails to the message of destination node by the universal tunnel set up in advance to the second equipment, logical channel L1 between business datum and the first equipment to source node is carried in message, logical channel L2 between the first equipment to destination node, between the second equipment to source node between logical channel L3 and the second equipment to destination node logical channel L4 mark in one, like this, according to preset logical channel mapping relations (logical channel namely corresponding to described mark and the mapping relations of L4), second equipment just can determine that the forwarding channel forwarding business datum in described message is L4, the business datum message is sent from L4, this message repeating mode, do not need to set up the pseudo-line of different protections for different business as prior art, reduce the quantity of ICB PW.

Accompanying drawing explanation

In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.

Fig. 1 is the transfer of data schematic diagram utilizing redundant entity group that prior art provides;

Fig. 2 A is the message forwarding method flow chart of the first equipment that one embodiment of the invention provides;

Fig. 2 B is the message forwarding method flow chart of the first equipment that another embodiment of the present invention provides;

Fig. 2 C is the message forwarding method flow chart of the second equipment that the embodiment of the present invention provides;

Fig. 3 is the RG GDT application connect TLV format chart that the embodiment of the present invention provides;

Fig. 4 is the format chart in a sub-tlv in the RG GDT application connect TLV that provides of the embodiment of the present invention;

Fig. 5 is the GDT application association TLV format chart that the embodiment of the present invention provides;

Fig. 6 is the format chart of a sub-tlv in the GDT application association TLV that provides of the embodiment of the present invention;

Fig. 7 A is the format chart of another sub-tlv in the GDT application association TLV that provides of the embodiment of the present invention;

Fig. 7 B is the RG GDT application disconnect TLV format chart that the embodiment of the present invention provides;

Fig. 8 is the downlink message forwarding method flow chart that one embodiment of the invention provides;

Fig. 9 is the uplink message retransmission method flow chart that one embodiment of the invention provides;

Figure 10 is the downlink message forwarding method flow chart that another embodiment of the present invention provides;

Figure 11 is the uplink message retransmission method flow chart that another embodiment of the present invention provides;

Figure 12 is a kind of network equipment infrastructure figure that the embodiment of the present invention provides.

Embodiment

Consult Fig. 2 A, the embodiment of the present invention provides a kind of message forwarding method, be applied in the communication system comprising source node, destination node, the first equipment and the second equipment, wherein said destination node and source node dual homed access described first equipment and described second equipment, described source node and between described first equipment and the second equipment respectively set up have the first logical channel L1 and the second logical channel L2, described destination node and between described first equipment and the second equipment respectively set up have the 3rd logical channel L3 and the 4th logical channel L4, the method comprises:

201A, the first equipment receive the first message of source node transmission from L1, and described first message carries the mark of business datum and L1.

202A, the first equipment are when L3 fault, and logical channel mapping relations pre-configured in the first equipment according to the identified query of described L1, determine the mark of the logical channel with the mark of described L1 with mapping relations.

Wherein, described pre-configured logical channel mapping relations are the mapping relations of the mark of the mapping relations of the mark of the mapping relations of described L1 and described L2, described L1 and described L3, the mark of described L1 and described L4.

Wherein, above-mentioned mapping relations can be static configuration, it can be specifically the configuration order according to user, configure described logical channel mapping relations on the second device, or above-mentioned mapping relations are that the notice message sent according to the first equipment is set up, wherein, setting up the specific implementation of mapping relations according to notice message can see the detailed description of subsequent embodiment.

203A, the first equipment send the second message by the universal tunnel set up in advance between described first equipment and the second equipment to the second equipment, and described second message comprises described business datum and has the mark of logical channel of mapping relations with described L1.

Wherein, described first logical channel L1, the second logical channel L2 in the embodiment of the present invention and subsequent embodiment are respectively the first pseudo-line PW1 and the second pseudo-line PW2; Described 3rd logical channel L3, the 4th logical channel L4 are respectively the first direct link AC 1 and the second direct link AC2; Or described first logical channel L1, the second logical channel L2 are respectively the first direct link AC1 and the second direct link AC2; Described 3rd logical channel L3, the 4th logical channel L4 are respectively the first pseudo-line PW1 and the second pseudo-line PW2; Or described first logical channel L1, the second logical channel L2, the 3rd logical channel L3 and the 4th logical channel L4 are respectively the first pseudo-line PW1, the second pseudo-line PW2, the 3rd pseudo-line PW3 and the 4th pseudo-line PW4; Or described first logical channel L1, the second logical channel L2, the 3rd logical channel L3 and the 4th logical channel L4 are respectively the first label forwarding path LSP1, the second label forwarding path LSP2, the 3rd label forwarding path LSP3 and the 4th label forwarding path LSP4.

The first equipment in embodiment of the present invention redundant entity group mails to the message of destination node by the universal tunnel set up in advance to the second equipment, carry business datum in message and there is with the mark of L1 the mark of logical channel of mapping relations, the second equipment is made to find the passage of the business datum in E-Packeting according to the mark having a logical channel of mapping relations with the mark of L1 of carrying in message, and pass through found passage forwarding service data to destination node, adopt this message repeating mode, do not need to set up the pseudo-line of different protections for different business as prior art, reduce the quantity of ICB PW.

Consult Fig. 2 B, the embodiment of the present invention provides a kind of message forwarding method, and its applied environment is identical with Fig. 2 A illustrated embodiment, and do not repeat them here, the method comprises:

201B, the first equipment receive the message of source node transmission from L1, and described message carries the mark of business datum and L1;

202B, the first equipment, when L3 fault, send described message by the universal tunnel set up in advance between described first equipment and the second equipment to the second equipment.

The first equipment in embodiment of the present invention redundant entity group mails to the message of destination node by the universal tunnel set up in advance to the second equipment; the mark of business datum and L1 is carried in message; the second equipment is made to find the passage of the business datum in E-Packeting according to the mark of the L1 carried in message; and pass through found passage forwarding service data to destination node; adopt this message repeating mode; do not need to set up the pseudo-line of different protections for different business as prior art, reduce the quantity of ICB PW.

Consult Fig. 2 C, the embodiment of the present invention provides a kind of message forwarding method, and its applied environment is identical with Fig. 2 A illustrated embodiment, and do not repeat them here, the method comprises:

201C, the second equipment receive by the universal tunnel set up in advance between the first equipment and the second equipment the message mailing to described destination node, and described message carries one in the mark of business datum and described L1, L2, L3 and L4.

Logical channel mapping relations pre-configured in 202C, the second equipment second equipment according to the identified query carried in described message, the forwarding channel determining to forward business datum in described message is L4, wherein, the logical channel of described pre-configured logical channel mapping relations corresponding to described mark and the mapping relations of L4.

Wherein, described pre-configured logical channel mapping relations specifically comprise at least one in the mapping relations of the mapping relations of the mapping relations of described L1 and described L4, described L2 and described L4, described L3 and described L4 and the mapping relations of described L4 and described L4.Wherein, above-mentioned mapping relations can be static configuration, it can be specifically the configuration order according to user, configure described logical channel mapping relations on the second device, or above-mentioned mapping relations are that the notice message sent according to the first equipment is set up, concrete, the mode setting up mapping relations according to notice message is shown in the detailed description of subsequent embodiment.

Wherein, the first equipment in above-mentioned three embodiments and the second equipment belong to same redundant entity group.It should be noted that, the first equipment in each embodiment is the arbitrary equipment in redundant entity group, and the second equipment is another equipment being arranged in same redundant entity group with the first equipment.

Business datum in described message is sent to destination node by described L4 by 203C, the second equipment.

The technical scheme provided to make the embodiment of the present invention clearly, provides as follows in a kind of redundant entity group and notices configuration information each other between equipment, and configures the scheme of mapping relations according to notice message:

1), the first equipment receives the notice message that the second equipment sends, the mark of described L2 or the mapping relations of L2 and L3 are carried in described notice message, described first equipment, according to described notice message, sets up the mapping relations of L2 and described L1, sets up the mapping relations of L2 and L3; Or carry the mark of described L4 or the mapping relations of L4 and L3 in described notice message, described first equipment, according to described notice message, sets up the mapping relations of L4 and L1, sets up the mapping relations of L4 and L3.

2), the second equipment receives the notice message that the first equipment sends, the mark of described L1 or the mapping relations of L1 and L3 are carried in described notice message, second equipment, according to described notice message, sets up the mapping relations of L1 and described L4, sets up the mapping relations of L1 and described L2; Or carry the mark of described L3 or the mapping relations of L1 and L3 in described notice message, the second equipment, according to described notice message, sets up the mapping relations of L3 and L4, sets up the mapping relations of L3 and L2.

The mode of this configuration mapping relations is applicable to only a source node and a destination node and requires to report his or her problems within a prescribed time and in a prescribed place access first equipment and the second equipment.

There is provided as follows in another kind of redundant entity group and notice configuration information each other between equipment, and configure the scheme of mapping relations according to notice message:

1), the first equipment receives the notice message that the second equipment sends, and described notice message comprises: in the mark of described L4 and the mapping relations of described L2 and L4 at least one, represent that the redundant entity of the application of logical channel between protective redundancy group of entities to described source node identifies the mark of ROID and described redundant entity group; First equipment, according to the mark of the redundant entity group in described notice message and ROID, is determined that L1 is logical channel between the first equipment that described ROID is corresponding to source node, is set up the mapping relations of described L1 and described L2;

Or described notice message comprises: in the mark of described L4 and the mapping relations of described L2 and L4 at least one, represent the ROID of application and the mark of described redundant entity group of logical channel between protective redundancy group of entities to described destination node; First equipment, according to the mark of the described redundant entity group in described notice message and ROID, determines that L3 is the logical channel between the first equipment that described ROID is corresponding to destination node, sets up and the mapping relations of logical channel L1 that L3 binds and described L2.

Or described notice message comprises: in the mark of described L4 and the mapping relations of described L2 and L4 at least one, represent that the redundant entity of the application of logical channel between protective redundancy group of entities to described source node identifies the mark of ROID and described redundant entity group; First equipment, according to the mark of the described redundant entity group in described notice message and ROID, is determined that L1 is logical channel between the first equipment that described ROID is corresponding to source node, is set up the mapping relations of described L1 and described L4;

Or described notice message comprises: in the mark of described L4 and the mapping relations of described L2 and L4 at least one, represent the ROID of application and the mark of described redundant entity group of logical channel between protective redundancy group of entities to described destination node; First equipment, according to the mark of the described redundant entity group in described notice message and ROID, determines that L3 is the logical channel between the first equipment that described ROID is corresponding to destination node, sets up and the logical channel L1 of described L3 binding and the mapping relations of described L4.

2), the second equipment receives the notice message that the first equipment sends, and described notice message comprises: in the mark of described L1 and the mapping relations of described L1 and L3 at least one, represent that the redundant entity of the application of logical channel between protective redundancy group of entities to described source node identifies the mark of ROID and described redundant entity group; Second equipment is according to the mark of the described redundant entity group in described notice message and ROID, determine that L2 is the logical channel between the second equipment that described ROID is corresponding to source node, determine L1 and L2 Protection path each other, the mapping relations of the logical channel L4 that foundation and described L2 bind and described L1;

Or this notice message comprises: in the mark of described L1 and the mapping relations of described L1 and L3 at least one, represent the ROID of application and the mark of described redundant entity group of logical channel between protective redundancy group of entities to described destination node; Described second equipment, according to the mark of the described redundant entity group in described notice message and ROID, is determined that L4 is the logical channel between the second equipment that described ROID is corresponding to destination node, is set up the mapping relations of described L4 and described L1.

Or this notice message comprises: in the mark of described L3 and the mapping relations of described L1 and L3 at least one, represent that the redundant entity of the application of logical channel between protective redundancy group of entities to described source node identifies the mark of ROID and described redundant entity group; Second equipment, according to the mark of the described redundant entity group in described notice message and ROID, determines that L2 is logical channel between the second equipment that described ROID is corresponding to source node, sets up and the logical channel L4 of described L2 binding and the mapping relations of described L3;

Or this notice message comprises: in the mark of described L3 and the mapping relations of described L1 and L3 at least one, represent the ROID of application and the mark of described redundant entity group of logical channel between protective redundancy group of entities to described destination node; Described second equipment, according to the mark of the described redundant entity group in described notice message and ROID, is determined that L4 is the logical channel between the second equipment that described ROID is corresponding to destination node, is set up the mapping relations of described L4 and described L3.

The mode of this configuration mapping relations is applicable to multiple source node or multiple destination node and requires to report his or her problems within a prescribed time and in a prescribed place the scene of access first equipment and the second equipment.

There is provided as follows in another redundant entity group and notice configuration information each other between equipment, and configure the scheme of mapping relations according to notice message:

1), the first equipment receives the notice message that the second equipment sends, and described notice message comprises: in the mark of described L4 and the mapping relations of described L2 and L4 at least one, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group; First equipment, according to the mark of the described redundant entity group in notice message and ROID, sets up the mapping relations of L4 and L1; Set up the mapping relations of L4 and L3;

Or this notice message comprises: in the mark of described L2 and the mapping relations of described L2 and L4 at least one, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group; First equipment, according to the mark of the described redundant entity group in notice message and ROID, is set up L2 and L1 mapping relations, is set up L2 and L3 mapping relations.

2), the second equipment receives the notice message that the first equipment sends, and described notice message comprises: in the mark of described L3 and the mapping relations of described L1 and L3 at least one, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group; Second equipment, according to the mark of the described redundant entity group in notice message and ROID, sets up the mapping relations of L4 and L3; Set up the mapping relations of L2 and L3;

Or this notice message comprises: in the mark of described L1 and the mapping relations of described L1 and L3 at least one, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group; Second equipment, according to the mark of the described redundant entity group in notice message and ROID, is set up L4 and L1 mapping relations, is set up L2 and L1 mapping relations.

The mode of this configuration mapping relations is applicable to an only source node and destination node and requires to report his or her problems within a prescribed time and in a prescribed place the scene of access first equipment and the second equipment, multiple source node or multiple destination node to be required to report his or her problems within a prescribed time and in a prescribed place the scene of access first equipment and the second equipment, first equipment and the second equipment need the pair relationhip setting up L1 and L2 in advance, i.e. L1 and L2 Protection path each other, set up the pair relationhip of L3 and L4 in advance, i.e. L3 and L4 Protection path each other, owing to establishing the pair relationhip of L3 and L4 in advance, so after the first equipment receives and carries the mark of L3 or the mapping relations of L1 and L3, according to the mark of L3 and the pair relationhip of L3 and L4 set up in advance, know that L3 is a logical channel corresponding to application of logical channel between protective redundancy group of entities to described destination node, again according to the binding relationship of predetermined L3 and L1, set up L4 and L1 mapping relations, in like manner the first equipment sets up L2 and L1 mapping relations.

Following with L1, L2 for pseudo-line (being assumed to PW1 and PW2), L3 and L4 is direct link (being assumed to AC1 and AC2) is that example specifically describes the mutual notice message of equipment in redundant entity group, and sets up the process of mapping relations.

1, the equipment in redundancy protecting group sends redundancy protecting group and connects RG Connect message, carries the ROID (redundant entity identifies, RedundantObject Identifier) of all application of this equipment use GDT in this message.

This message is a notice message, and other equipment in redundancy protecting group can receive.

Wherein, carry redundancy protecting group GDT application in RG Connect message and set up RG GDTapplication connect TLV, RG GDT application connect TLV form can as shown in Figure 3, Type=TBD, and identifying this TLV is RG GDT application connect TLV; Length is the total length of optional sub-tlvs; optional sub-tlvs carries the ROID of all application of this equipment use GDT; wherein; in the embodiment of the present invention; all application of GDT are used to comprise: the application of protection direct link; with the application of the pseudo-line of protection, so the ROID carried in optional sub-tlvs comprises: the ROID (being assumed to ROID1) of the pseudo-line of mark protection and the ROID (being assumed to ROID2) of mark protection direct link.For the third mode above-mentioned, all application of GDT are used to comprise: the application representing the configuration information for consulting redundant entity in redundant entity group, assuming that it is ROID3; Protocol version protocol version can be 1.Wherein, can carry all ROID by multiple sub-tlv, now, each sub-TLV carries a ROID; Also can carry all ROID in a sub-tlv, Fig. 4 shows the mode of carrying all ROID in a sub-tlv.

2, the equipment in redundancy protecting group sends the redundancy protecting group application data message RG application data message for certain application, wherein carries the binding relationship of PW and AC relevant to this application on this equipment.

Wherein, in RG application data message, GDT association GDTapplication association tlvs is carried in expansion, and it is for identifying the binding relationship of PW and the AC that this equipment uses certain application of GDT to be correlated with.Wherein, the form of GDT application association TLV as shown in Figure 5, Type=GDT Association, identifying this TLV is GDT application associationTLV, Application specific sub-tlvs carries the mark of certain application, the binding relationship of PW and the AC relevant with this application.Length is the length of Application specific sub-tlvs.Wherein, the form of sub-tlv can be as shown in Figure 6.Optionally, it can also carry PW ID, and this PW ID can be identified by FEC128, also can be identified by FEC129.

3, the Equipments Setting forwarding-table item in redundant entity group.

In order to how clear description configures forwarding label, assuming that PE1 and PE2 forms a redundant entity group,

In this step; after PE2 receives the notice message (carrying the binding relationship of PW2 and AC2 in this notice message) of the pseudo-line of protection that PE1 sends; to determine between PE2 and source node pseudo-line PW1 Protection path each other between pseudo-line PW2 and PE1 and source node; set up the binding relationship of link AC2 between PW1 and PW2 to destination node; wherein the binding relationship of PW1 and AC2 can be: the binding relationship of the label of PW1 and the mark of AC2, and the mark of AC2 can be the interface identifier interface ID2 of AC2.

PE2 receive PE1 send protection direct link notice message after (in this notice message, carrying the binding relationship of PW2 and AC2); to determine between PE2 and destination node direct link AC1 Protection path each other between direct link AC2 and PE1 and destination node; set up the binding relationship of PW2 and AC1; wherein the binding relationship of PW2 and AC1 can be: the binding relationship of the label of PW2 and the mark of AC1, and the mark of AC1 can be the interface identifier interface ID1 of AC1.

PE2, according to set up above-mentioned corresponding relation, configures forwarding-table item, as shown in table 1:

Table 1

In like manner, the forwarding-table item of the upper configuration of PE1 is also as shown in table 1.As can be seen from Table 1, because the label of PW1 and the mark of AC2 have binding relationship, the label of PW1 and the mark of AC1 have binding relationship, so have mapping relations between the mark of AC2 and the mark of AC1.

Or in RG application data message, GDT application associationtlvs is carried in expansion, and the form of GDT application association TLV as shown in Figure 5.Application specificsub-tlvs carries ROID of certain application, and the mark in path that this application is protected.Wherein, the form of sub-tlv can be as shown in Figure 7.Optionally, it can also carry PW ID, and this PW ID can be identified by FEC128, also can be identified by FEC129.In the embodiment of the present invention; assuming that use the application of GDT to comprise: the application of protection direct link; with the application of the pseudo-line of protection; so the equipment in this step redundancy protecting group can send the notice message of notice message and the protection direct link protecting pseudo-line; assuming that be that PE1 sends; then protect the notice message of pseudo-line to comprise: the label of ROID1 and PW1, the notice message of protection direct link comprises: ROID2 and AC1 identifies.Follow-up, after PE2 receives the notice message of the pseudo-line of protection that PE1 sends, to determine between PE2 and source node pseudo-line PW1 Protection path each other between pseudo-line PW2 and PE1 and source node, configuration forwarding-table item, as shown in table 2:

Table 2

In like manner, PE1 also can set up and transmit, what it was set up transmits identical with transmitting that PE2 sets up.It should be noted that, adopt the mode of this notice configuration information, the forwarding-table item that PE2 and PE1 sets up as shown in Figure 1, can not affect realization of the present invention yet.

When application deleted by needs or need to delete RG connection, equipment in redundant entity group can send redundant entity group and disconnect RG disconnect message, ICCP status code (across frame state of communication protocols code) mark in Disconnect Code TLV in this message deletes RG to connect, or the application of deleting on RG, connect if delete RG, then do not need to carry the TLV about application, if delete the application on RG, then also need to carry Application-specific disconnect TLV in this RG disconnect message, RG GDT application disconnect TLV is carried in Application-specific disconnect TLV, GDT application is deleted to indicate, RG GDTapplication disconnect TLV form as shown in Figure 7 B, wherein, Type=TBD, mark RG GDTapplication disconnect TLV, carry the RO ID of the application that should delete in Optional sub-tlvs, RO ID has two kinds of carrying modes, and one is carried in a sub-TLV, and another kind is carried by multiple sub-tlv, does not affect realization of the present invention.

As shown in Figure 8, the embodiment of the present invention provides a kind of downlink service data transmission method, and the method supposition source node is PE3, and destination node is CE1, and source node sends downlink service data to destination node, and the method specifically comprises:

801, PE1 receives the downlink data packet that PE3 sends, and this downlink data packet comprises: the label of public network label PSN Label, PW1 and downlink service data, wherein downlink service data can be PDU data.

802, PE1 peels off PSN Label from the downlink data packet received, check that private network tags is the label of PW1, determine that the AC that this PW1 is corresponding is AC1, when finding the forwarding interface fault of AC1, according to the mapping relations of the label of pre-configured PW1 and the label of PW2, the label of PW1 in downlink data packet is replaced with the label of PW2, is then sent to PE2 by descending GDT.

Wherein, the mapping relations of the label of pre-configured PW1 and the label of PW2 represent PW1 and and the pseudo-line PW2 of described PW1 Protection path each other between mapping relations.

803, PE2 receives the downlink data packet of PE1 transmission by descending GDT after, when the AC2 that PW2 binds is available, this AC2 is utilized to send downlink service data to CE1.

It should be noted that, in this step, after PE2 receives the downlink data packet of PE1 transmission, can wrap at this downlink data and mark, if AC2 is unavailable like this, then this downlink data packet can directly abandon by PE2, prevents this downlink data from wrapping in circulation between PE1 and PE2 and forwards.

In the embodiment of the present invention when the AC1 fault that PW1 binds, PE1 is being sent before downlink data packet to PE2 by GDT, the label of PW1 is replaced with the label of PW2, after such PE2 receives downlink data packet, the AC2 that just can directly bind from PW2 sends downlink service data, adopts in this way, and GDT and concrete business are had nothing to do, it can be only a pseudo-line or bidirectional LSP etc., and does not need to set up different pseudo-lines for different business as prior art.

As shown in Figure 9, the embodiment of the present invention provides a kind of uplink business data transmission method, and the method supposition source node is CE1, and destination node is PE3, and source node sends uplink business data to destination node, and the method specifically comprises:

901, PE1 receives the uplink business data that CE1 sends.

902, PE1 determines that the PW that the AC1 receiving uplink business data binds is PW1, when PW1 fault, according to the mapping relations of the label of pre-configured PW1 and the label of PW2, sent the upstream data bag comprising the PW2 that uplink business data and PW1 map to PE2 by up GDT.

903, PE2 receives upstream data bag from up GDT, and when PW2 is available, PE2 utilizes PW2 to send uplink business data to PE3.

When PW2 cannot the used time, by data packet discarding, prevent this upstream data from wrapping in circulation between PE1 and PE2 and forward.

The embodiment of the present invention is when needs send uplink business data, if during PW1 fault, PE1 sends the upstream data bag comprising uplink business data and PW2 to PE2 by up GDT, makes PE2 directly send uplink business data from PW2 upstream device.Adopt in this way, GDT and concrete business are had nothing to do, and it can be only a pseudo-line or bidirectional LSP etc., and does not need to set up different pseudo-lines for different business as prior art.

Consult Figure 10, the embodiment of the present invention provides a kind of downlink service data transmission method, and the method supposition source node is PE3, and destination node is CE1, and source node sends downlink service data to destination node, and the method is concrete, and the method specifically comprises:

1001, PE1 receives the downlink data packet that PE3 sends, and this downlink data packet comprises: the label of public network label PSN Label, PW1 and downlink service data, wherein downlink service data can be PDU data.

1002, PE1 peels off PSN Label from the downlink data packet received, check that private network tags is PW1 label, determining that the AC that this PW1 is corresponding is AC1, when finding the forwarding interface fault of AC1, by descending GDT, the downlink data packet after stripping PSN Label being sent to PE2.

1003, after PE2 receives downlink data packet from descending GDT, according to the mapping relations of the label of pre-configured PW1 and the mark of AC2, determine that the AC that PW1 maps is AC2.

Wherein, the mapping relations of the label of pre-configured PW1 and the mark of AC2 be described PW1 and and the described AC2 that binds of the PW2 of PW1 Protection path each other between mapping relations.

1004, when AC2 is available, PE2 issues downlink service data by AC2 to CE1.

When AC2 is unavailable, then this downlink data packet can directly abandon by PE2.

The embodiment of the present invention is when AC1 fault, after PE2 receives the downlink data packet of PE1 equipment transmission, determine that the AC that PW1 maps is AC2, downlink service data is sent from this AC2, adopt in this way, GDT and concrete business are had nothing to do, and it can be only a pseudo-line or bidirectional LSP etc., and does not need to set up different pseudo-lines for different business as prior art.

Consult Figure 11, the embodiment of the present invention provides a kind of uplink business data transmission method, and the method supposition source node is CE1, and destination node is PE3, and source node sends uplink business data to destination node, and the method specifically comprises:

1101, PE1 receives the uplink business data that CE1 sends.

The direct link that the present embodiment supposition PE1 receives uplink business data is AC1.

1102, PE1 is according to the mapping relations of the mark of pre-configured AC1 and the label of PW1, determines that the PW that AC1 is corresponding is PW1, when PW1 fault, by up GDT, the upstream data bag comprising uplink business data and PW1 label is sent to PE2.

1103, after PE2 receives upstream data bag by up GDT, according to the mapping relations of the label of pre-configured PW1 and the label of PW2, determine that the pseudo-line that the PW1 carried in upstream data bag maps is PW2.

Wherein, the mapping relations of pre-configured PW1 and PW2 be PW1 and and the pseudo-line PW2 of described PW1 Protection path each other between mapping between.

1104, when PW2 is available, PE2 sends uplink business data by PW2 to PE3.

When PW2 is unavailable, this upstream data bag then directly abandons by PE2.

The embodiment of the present invention is when sending uplink service, and during PW1 fault, after what PE2 received that PE1 sends comprise the upstream data bag of PW1 and uplink business data, the PW2 mapped from PW1 sends uplink business data.Adopt in this way, GDT and concrete business are had nothing to do, and it can be only a pseudo-line or bidirectional LSP etc., and does not need to set up different pseudo-lines for different business as prior art.

The various embodiments described above are under to destination node and source node, all dual homed accesses the scene of the first equipment and the second equipment, the description that technical scheme provided by the invention is carried out, access the scene of the first equipment and the second equipment for only destination node or source node dual homed, technical scheme provided by the invention is suitable for too.Main distinction place is, if only destination node dual homed accesses the scene of the first equipment and the second equipment, the pre-configured mapping relations of second equipment comprise the mapping relations of logical channel between logical channel between the first equipment to source node and the second equipment to destination node, and/or logical channel between the first equipment to destination node and the mapping relations of logical channel between the second equipment to destination node; Mapping relations preset on first equipment comprise: the logical channel between the first equipment to source node and the mapping relations of logical channel between the first equipment to destination node, and/or, the logical channel between the first equipment to source node and the mapping relations of logical channel between the second equipment to destination node.

Consult Figure 12, the embodiment of the present invention provides a kind of network equipment, and this network equipment comprises:

First Transmit-Receive Unit 10, for by the described network equipment and and the universal tunnel set up in advance between another network equipment of same redundant entity group of the described network equipment receive the message mailing to destination node, described message carries one in the mark of business datum and the first logical channel L1, the second logical channel L2, the 3rd logical channel L3 and the 4th logical channel L4; Wherein, the first logical channel is the logical channel of source node and another LA Management Room described; Second logical channel is the logical channel of described source node and described LA Management Room; 3rd logical channel is the logical channel of described destination node and another LA Management Room described; 4th logical channel is the logical channel of described destination node and described LA Management Room;

Forwarding channel determining unit 20, for logical channel mapping relations pre-configured in the network equipment according to the identified query carried in described message, the forwarding channel determining to forward business datum in described message is L4, wherein, the logical channel of described pre-configured logical channel mapping relations corresponding to described mark and the mapping relations of L4;

Second Transmit-Receive Unit 30, for sending to destination node by described L4 by the business datum in described message.

In order to set up mapping relations, this network equipment also comprises: the first mapping relations set up unit 40, for the configuration order according to user, configures described logical channel mapping relations.

Or the first Transmit-Receive Unit 10 also for receiving the notice message that the first equipment sends, carries the mark of described L1 or the mapping relations of L1 and L3 in described notice message; This network equipment also comprises: the second mapping relations set up unit 50, for according to described notice message, sets up the mapping relations of described L1 and described L4; Or the first Transmit-Receive Unit 10 also for receiving the notice message that the first equipment sends, carries the mark of described L3 or the mapping relations of L1 and L3 in described notice message; This network equipment also comprises: the 3rd mapping relations set up unit 60, for according to described notice message, sets up the mapping relations of described L3 and described L4.

Or, first Transmit-Receive Unit 10 is also for receiving the notice message that another network equipment described sends, and described notice message comprises at least one in the mark of described L1 and the mapping relations of described L1 and L3, represents the mark of the redundant entity mark ROID of the application of logical channel between protective redundancy group of entities to described source node and described redundant entity group; This network equipment also comprises: the 4th mapping relations set up unit 70, for according to the mark of the described redundant entity group in described notice message and ROID, determine that L2 is the logical channel between the described network equipment that described ROID is corresponding to source node, determine L1 and L2 Protection path each other, the mapping relations of the logical channel L4 that foundation and described L2 bind and described L1;

Or, first Transmit-Receive Unit 10 is also for receiving the notice message that another network equipment described sends, and described notice message comprises: in the mark of described L1 and the mapping relations of described L1 and L3 at least one, represent the ROID of application and the mark of described redundant entity group of logical channel between protective redundancy group of entities to described destination node; This network equipment also comprises: the 5th mapping relations set up unit 80, for according to the mark of the described redundant entity group in described notice message and ROID, determine that L4 is the logical channel between the described network equipment that described ROID is corresponding to destination node, set up the mapping relations of described L4 and described L1.

Or, first Transmit-Receive Unit 10 is also for receiving the notice message that another network equipment described sends, and described notice message comprises: in the mark of described L3 and the mapping relations of described L1 and L3 at least one, represent that the redundant entity of the application of logical channel between protective redundancy group of entities to described source node identifies the mark of ROID and described redundant entity group; The described network equipment also comprises: the 6th mapping relations set up unit 90, for according to the mark of the described redundant entity group in described notice message and ROID, determine that L2 is logical channel between the described network equipment that described ROID is corresponding to source node, set up and the logical channel L4 of described L2 binding and the mapping relations of described L3;

Or, first Transmit-Receive Unit 10 is also for receiving the notice message that described first equipment sends, and described notice message comprises: in the mark of described L3 and the mapping relations of described L1 and L3 at least one, represent the ROID of application and the mark of described redundant entity group of logical channel between protective redundancy group of entities to described destination node; The described network equipment also comprises: the 7th mapping relations set up unit 100, also for according to the mark of the described redundant entity group in described notice message and ROID, determine that L4 is the logical channel between the described network equipment that described ROID is corresponding to destination node, set up the mapping relations of described L4 and described L3.

Or, described first Transmit-Receive Unit, also for receiving the notice message that another network equipment described sends, described notice message comprises: in the mark of described L3 and the mapping relations of described L1 and L3 at least one, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group; The described network equipment also comprises: the 8th mapping relations set up unit 200, for according to the mark of the described redundant entity group in notice message and ROID, sets up the mapping relations of described L4 and described L3;

Or, first Transmit-Receive Unit, also for receiving the notice message that another network equipment described sends, described notice message comprises: in the mark of described L1 and the mapping relations of described L1 and L3 at least one, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group; The described network equipment also comprises: the 9th mapping relations set up unit 300, for according to the mark of the described redundant entity group in notice message and ROID, sets up described L4 and described L1 mapping relations.

It should be noted that, illustrate in Figure 12 that nine mapping relations set up unit, but these nine mapping relations set up unit not to be needed to exist on this network equipment simultaneously, the network equipment can only there is one of them mapping relations set up unit or several mapping relations set up unit, specifically according to needing the mapping relations set up to determine in the present invention.

The network equipment in the embodiment of the present invention receives by the universal tunnel set up in advance the message mailing to destination node from another network equipment, logical channel L1 between business datum and another network equipment to source node is carried in message, logical channel L2 between this network equipment to destination node, between another network equipment to source node between logical channel L3 and this network equipment to destination node logical channel L4 mark in one, like this, according to preset logical channel mapping relations (logical channel namely corresponding to described mark and the mapping relations of L4), this network equipment just can determine that the forwarding channel forwarding business datum in described message is L4, the business datum message is sent from L4, this message repeating mode, do not need to set up the pseudo-line of different protections for different business as prior art, reduce the quantity of ICB PW.

One of ordinary skill in the art will appreciate that all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program completes, described program can be stored in a kind of computer-readable recording medium, such as read-only memory, disk or CD etc.

The message transmitting method provided the embodiment of the present invention above and the network equipment are described in detail, apply specific case herein to set forth principle of the present invention and execution mode, the explanation of above embodiment just understands method of the present invention and core concept thereof for helping; Meanwhile, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications, in sum, this description should not be construed as limitation of the present invention.

Claims

1. a message forwarding method, be applied in the communication system comprising source node, destination node, the first equipment and the second equipment, wherein said destination node and source node be dual homed described first equipment of access and described second equipment respectively, described source node and between described first equipment and the second equipment respectively set up have the first logical channel L1 and the second logical channel L2, described destination node and between described first equipment and the second equipment respectively set up have the 3rd logical channel L3 and the 4th logical channel L4, it is characterized in that, comprising:

2. method according to claim 1, it is characterized in that, described pre-configured logical channel mapping relations specifically comprise at least one in the mapping relations of the mapping relations of the mapping relations of described L1 and described L4, described L2 and described L4, described L3 and described L4 and the mapping relations of described L4 and described L4.

3. method according to claim 1, is characterized in that,

Pre-configured described logical channel mapping relations comprise:

Second equipment receives the notice message that the first equipment sends, and carry the mark of described L1 or the mapping relations of L1 and L3 in described notice message, described second equipment, according to described notice message, sets up the mapping relations of described L1 and described L4;

Or,

Pre-configured described logical channel mapping relations comprise:

Second equipment receives the notice message that the first equipment sends, and carry the mark of described L3 or the mapping relations of L1 and L3 in described notice message, described second equipment, according to described notice message, sets up the mapping relations of described L3 and described L4;

Or,

Pre-configured described logical channel mapping relations comprise:

According to the configuration order of user, configure described logical channel mapping relations on the second device.

4. method according to claim 1, is characterized in that,

Pre-configured described logical channel mapping relations comprise:

Described second equipment receives the notice message that described first equipment sends, and described notice message comprises: in the mark of described L1 and the mapping relations of described L1 and L3 at least one, represent that the redundant entity of the application of logical channel between protective redundancy group of entities to described source node identifies the mark of ROID and described redundant entity group;

Described second equipment is according to the mark of the described redundant entity group in described notice message and ROID, determine that L2 is the logical channel between the second equipment that described ROID is corresponding to source node, determine L1 and L2 Protection path each other, the mapping relations of the logical channel L4 that foundation and described L2 bind and described L1;

Or,

Pre-configured described logical channel mapping relations comprise:

Described second equipment receives the notice message that described first equipment sends, and described notice message comprises: in the mark of described L1 and the mapping relations of described L1 and L3 at least one, represent the ROID of application and the mark of described redundant entity group of logical channel between protective redundancy group of entities to described destination node;

Described second equipment, according to the mark of the described redundant entity group in described notice message and ROID, is determined that L4 is the logical channel between the second equipment that described ROID is corresponding to destination node, is set up the mapping relations of described L4 and described L1.

5. method according to claim 1, is characterized in that,

Pre-configured described logical channel mapping relations comprise:

Described second equipment receives the notice message that described first equipment sends, and described notice message comprises: in the mark of described L3 and the mapping relations of described L1 and L3 at least one, represent that the redundant entity of the application of logical channel between protective redundancy group of entities to described source node identifies the mark of ROID and described redundant entity group;

Described second equipment, according to the mark of the described redundant entity group in described notice message and ROID, determines that L2 is logical channel between the second equipment that described ROID is corresponding to source node, sets up and the logical channel L4 of described L2 binding and the mapping relations of described L3;

Or,

Pre-configured described logical channel mapping relations comprise:

Described second equipment receives the notice message that described first equipment sends, and described notice message comprises: in the mark of described L3 and the mapping relations of described L1 and L3 at least one, represent the ROID of application and the mark of described redundant entity group of logical channel between protective redundancy group of entities to described destination node;

Described second equipment, according to the mark of the described redundant entity group in described notice message and ROID, is determined that L4 is the logical channel between the second equipment that described ROID is corresponding to destination node, is set up the mapping relations of described L4 and described L3.

6. method according to claim 1, is characterized in that,

Pre-configured described logical channel mapping relations comprise:

Described second equipment receives the notice message that described first equipment sends, and described notice message comprises: in the mark of described L3 and the mapping relations of described L1 and L3 at least one, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group;

Described second equipment, according to the mark of the described redundant entity group in notice message and ROID, sets up the mapping relations of described L4 and described L3;

Or,

Pre-configured described logical channel mapping relations comprise:

Described second equipment receives the notice message that described first equipment sends, and described notice message comprises: in the mark of described L1 and the mapping relations of described L1 and L3 at least one, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group;

Described second equipment, according to the mark of the described redundant entity group in notice message and ROID, sets up described L4 and described L1 mapping relations.

7. method according to claim 1, is characterized in that,

Described first logical channel L1, the second logical channel L2 are respectively the first pseudo-line PW1 and the second pseudo-line PW2; Described 3rd logical channel L3, the 4th logical channel L4 are respectively the first direct link AC1 and the second direct link AC2;

Or,

Described first logical channel L1, the second logical channel L2 are respectively the first direct link AC1 and the second direct link AC2; Described 3rd logical channel L3, the 4th logical channel L4 are respectively the first pseudo-line PW1 and the second pseudo-line PW2;

Or,

Described first logical channel L1, the second logical channel L2, the 3rd logical channel L3 and the 4th logical channel L4 are respectively the first pseudo-line PW1, the second pseudo-line PW2, the 3rd pseudo-line PW3 and the 4th pseudo-line PW4;

Or,

Described first logical channel L1, the second logical channel L2, the 3rd logical channel L3 and the 4th logical channel L4 are respectively the first label forwarding path LSP1, the second label forwarding path LSP2, the 3rd label forwarding path LSP3 and the 4th label forwarding path LSP4.

8. a message forwarding method, be applied in the communication system comprising source node, destination node, the first equipment and the second equipment, wherein said destination node and source node dual homed access described first equipment and described second equipment, described source node and between described first equipment and the second equipment respectively set up have the first logical channel L1 and the second logical channel L2, described destination node and between described first equipment and the second equipment respectively set up have the 3rd logical channel L3 and the 4th logical channel L4, it is characterized in that, comprising:

9. method according to claim 8, it is characterized in that, described pre-configured logical channel mapping relations are the mapping relations of the mark of the mapping relations of the mark of the mapping relations of described L1 and described L2, described L1 and described L3, the mark of described L1 and described L4.

10. method according to claim 8, is characterized in that,

Pre-configured described logical channel mapping relations comprise:

Described first equipment receives the notice message that described second equipment sends, and carry the mark of described L2 or the mapping relations of L2 and L3 in described notice message, described first equipment, according to described notice message, sets up the mapping relations of described L2 and described L1;

Or,

Pre-configured described logical channel mapping relations comprise:

Described first equipment receives the notice message that described second equipment sends, and carry the mark of described L4 or the mapping relations of L4 and L3 in described notice message, described first equipment, according to described notice message, sets up the mapping relations of described L4 and described L1;

Or,

Pre-configured described logical channel mapping relations comprise:

According to the configuration order of user, configure described logical channel mapping relations on said first device.

11. methods according to claim 8, is characterized in that,

Pre-configured described logical channel mapping relations comprise:

First equipment receives the notice message that the second equipment sends, and described notice message comprises: in the mark of described L4 and the mapping relations of described L2 and L4 at least one, represent that the redundant entity of the application of logical channel between protective redundancy group of entities to described source node identifies the mark of ROID and described redundant entity group;

Described first equipment, according to the mark of the described redundant entity group in described notice message and ROID, is determined that L1 is logical channel between the first equipment that described ROID is corresponding to source node, is set up the mapping relations of described L1 and described L2;

Or,

Pre-configured described logical channel mapping relations comprise:

First equipment receives the notice message that the second equipment sends, and described notice message comprises: in the mark of described L4 and the mapping relations of described L2 and L4 at least one, represent the ROID of application and the mark of described redundant entity group of logical channel between protective redundancy group of entities to described destination node;

First equipment, according to the mark of the described redundant entity group in described notice message and ROID, determines that L3 is the logical channel between the first equipment that described ROID is corresponding to destination node, sets up and the mapping relations of logical channel L1 that L3 binds and described L2.

12. methods according to claim 8, is characterized in that,

Pre-configured described logical channel mapping relations comprise:

First equipment, according to the mark of the described redundant entity group in described notice message and ROID, is determined that L1 is logical channel between the first equipment that described ROID is corresponding to source node, is set up the mapping relations of described L1 and described L4;

Or,

Pre-configured described logical channel mapping relations comprise:

First equipment, according to the mark of the described redundant entity group in described notice message and ROID, determines that L3 is the logical channel between the first equipment that described ROID is corresponding to destination node, sets up and the logical channel L1 of described L3 binding and the mapping relations of described L4.

13. methods according to claim 8, is characterized in that,

Pre-configured described logical channel mapping relations comprise:

First equipment receives the notice message that the second equipment sends, and described notice message comprises: in the mark of described L4 and the mapping relations of described L2 and L4 at least one, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group;

First equipment, according to the mark of the described redundant entity group in notice message and ROID, sets up the mapping relations of described L4 and described L1;

Or,

Pre-configured described logical channel mapping relations comprise:

First equipment receives the notice message that the second equipment sends, and described notice message comprises: in the mark of described L2 and the mapping relations of described L2 and L4 at least one, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group;

First equipment, according to the mark of the described redundant entity group in notice message and ROID, sets up described L2 and described L1 mapping relations.

14. methods according to claim 8, is characterized in that,

Or,

Described first logical channel L1, the second logical channel L2 are respectively the first direct link AC1 and the second direct link AC2; Described 3rd logical channel L3, the second logical channel L4 are respectively the first pseudo-line PW1 and the second pseudo-line PW2;

Or,

15. 1 kinds of message forwarding methods, be applied in the communication system comprising source node, destination node, the first equipment and the second equipment, wherein said destination node is dual homed described first equipment of access and described second equipment respectively, described source node and described first equipment room are set up the first logical channel L1, described destination node and between described first equipment and the second equipment respectively set up have the second logical channel L2 and the 3rd logical channel L3, it is characterized in that, comprising:

16. methods according to claim 15, it is characterized in that, described pre-configured logical channel mapping relations specifically comprise at least one in the mapping relations of the mapping relations of described L1 and described L3, described L2 and described L3 and the mapping relations of described L3 and described L3.

17. methods according to claim 15, is characterized in that,

Pre-configured described logical channel mapping relations comprise:

Second equipment receives the notice message that the first equipment sends, and carry the mark of described L1 or the mapping relations of L1 and L2 in described notice message, described second equipment, according to described notice message, sets up the mapping relations of described L1 and described L3;

Or,

Pre-configured described logical channel mapping relations comprise:

Second equipment receives the notice message that the first equipment sends, and carry the mark of described L2 or the mapping relations of L1 and L2 in described notice message, described second equipment, according to described notice message, sets up the mapping relations of described L2 and described L3;

Or,

Pre-configured described logical channel mapping relations comprise:

18. methods according to claim 15, is characterized in that,

Pre-configured described logical channel mapping relations comprise:

Described second equipment receives the notice message that described first equipment sends, and described notice message comprises: in the mark of described L1 and the mapping relations of described L1 and L2 at least one, represent the ROID of application and the mark of described redundant entity group of logical channel between protective redundancy group of entities to described destination node;

Described second equipment, according to the mark of the described redundant entity group in described notice message and ROID, is determined that L3 is the logical channel between the second equipment that described ROID is corresponding to destination node, is set up the mapping relations of described L3 and described L1;

Or,

Pre-configured described logical channel mapping relations comprise:

Described second equipment receives the notice message that described first equipment sends, and described notice message comprises: in the mark of described L2 and the mapping relations of described L1 and L2 at least one, represent that the redundant entity of the application of logical channel between protective redundancy group of entities to described destination node identifies the mark of ROID and described redundant entity group;

Described second equipment, according to the mark of the described redundant entity group in described notice message and ROID, is determined that L3 is logical channel between the second equipment that described ROID is corresponding to destination node, is set up the mapping relations of L3 and described L2.

19. methods according to claim 15, is characterized in that,

Pre-configured described logical channel mapping relations comprise:

Described second equipment receives the notice message that described first equipment sends, and described notice message comprises: in the mark of described L2 and the mapping relations of described L1 and L2 at least one, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group;

Described second equipment, according to the mark of the described redundant entity group in notice message and ROID, sets up the mapping relations of described L3 and described L2;

Or,

Described in preconfigured, logical channel mapping relations comprise:

Described second equipment receives the notice message that described first equipment sends, and described notice message comprises: in the mark of described L1 and the mapping relations of described L1 and L2 at least one, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group;

Described second equipment, according to the mark of the described redundant entity group in notice message and ROID, sets up described L3 and described L1 mapping relations.

20. methods according to claim 15, is characterized in that,

Described first logical channel L1 is the first pseudo-line PW1; Described second logical channel L2, the 3rd logical channel L3 are respectively the first direct link AC1 and the second direct link AC2;

Or,

Described first logical channel L1 is the first direct link AC1; Described second logical channel L2, the 3rd logical channel L3 are respectively the first pseudo-line PW1 and the second pseudo-line PW2;

Or,

Described first logical channel L1, the second logical channel L2 and the 3rd logical channel L3 are respectively the first pseudo-line PW1, the second pseudo-line PW2 and the 3rd pseudo-line PW3;

Or,

Described first logical channel L1, the second logical channel L2 and the 3rd logical channel L3 are respectively the first label forwarding path LSP1, the second label forwarding path LSP2 and the 3rd label forwarding path LSP3.

21. 1 kinds of message forwarding methods, be applied in the communication system comprising source node, destination node, the first equipment and the second equipment, wherein said destination node dual homed described first equipment of access and described second equipment, described source node and described first equipment room are set up the first logical channel L1, described destination node and between described first equipment and the second equipment respectively set up have the second logical channel L2 and the 3rd logical channel L3, it is characterized in that, comprising:

22. methods according to claim 21, is characterized in that, described pre-configured logical channel mapping relations are: the mapping relations of the mapping relations of described L1 and described L2, described L1 and described L3.

23. methods according to claim 21, is characterized in that,

Pre-configured described logical channel mapping relations comprise:

Described first equipment receives the notice message that described second equipment sends, and carry the mark of described L3 in described notice message, described first equipment, according to described notice message, sets up the mapping relations of described L1 and described L3;

Or,

Pre-configured described logical channel mapping relations comprise:

24. methods according to claim 21, is characterized in that,

Pre-configured described logical channel mapping relations comprise:

First equipment receives the notice message that the second equipment sends, and described notice message comprises: the mark of described L3, the ROID of application representing logical channel between protective redundancy group of entities to described destination node and the mark of described redundant entity group;

First equipment, according to the mark of the described redundant entity group in described notice message and ROID, determines that L2 is the logical channel between the first equipment that described ROID is corresponding to destination node, sets up and the logical channel L1 of described L2 binding and the mapping relations of described L3.

25. methods according to claim 21, is characterized in that,

Pre-configured described logical channel mapping relations comprise:

First equipment receives the notice message that the second equipment sends, and described notice message comprises: the mark of described L3, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group;

First equipment, according to the mark of the described redundant entity group in notice message and ROID, sets up the mapping relations of described L3 and described L1.

26. methods according to claim 21, is characterized in that,

Or,

27. 1 kinds of network equipments, is characterized in that, the described network equipment comprises:

28. network equipments according to claim 27, is characterized in that, this network equipment also comprises:

First mapping relations set up unit, for the configuration order according to user, configure described logical channel mapping relations.

29. network equipments according to claim 27, is characterized in that,

Described first Transmit-Receive Unit, also for receiving the notice message that the first equipment sends, carries the mark of described L1 or the mapping relations of L1 and L3 in described notice message;

This network equipment also comprises:

Second mapping relations set up unit, for according to described notice message, set up the mapping relations of described L1 and described L4;

Or,

Described first Transmit-Receive Unit, also for receiving the notice message that the first equipment sends, carries the mark of described L3 or the mapping relations of L1 and L3 in described notice message;

This network equipment also comprises:

3rd mapping relations set up unit, for according to described notice message, set up the mapping relations of described L3 and described L4.

30. network equipments according to claim 27, is characterized in that,

Described first Transmit-Receive Unit, also for receiving the notice message that another network equipment described sends, described notice message comprises at least one in the mark of described L1 and the mapping relations of described L1 and L3, represents the mark of the redundant entity mark ROID of the application of logical channel between protective redundancy group of entities to described source node and described redundant entity group;

This network equipment also comprises:

4th mapping relations set up unit, for according to the mark of the described redundant entity group in described notice message and ROID, determine that L2 is the logical channel between the described network equipment that described ROID is corresponding to source node, determine L1 and L2 Protection path each other, the mapping relations of the logical channel L4 that foundation and described L2 bind and described L1;

Or,

Described first Transmit-Receive Unit, also for receiving the notice message that another network equipment described sends, described notice message comprises: in the mark of described L1 and the mapping relations of described L1 and L3 at least one, represent the ROID of application and the mark of described redundant entity group of logical channel between protective redundancy group of entities to described destination node;

This network equipment also comprises:

5th mapping relations set up unit, for according to the mark of the described redundant entity group in described notice message and ROID, determine that L4 is the logical channel between the described network equipment that described ROID is corresponding to destination node, set up the mapping relations of described L4 and described L1.

31. network equipments according to claim 27, is characterized in that,

Described first Transmit-Receive Unit, also for receiving the notice message that another network equipment described sends, described notice message comprises: in the mark of described L3 and the mapping relations of described L1 and L3 at least one, represent that the redundant entity of the application of logical channel between protective redundancy group of entities to described source node identifies the mark of ROID and described redundant entity group;

The described network equipment also comprises:

6th mapping relations set up unit, for according to the mark of the described redundant entity group in described notice message and ROID, determine that L2 is logical channel between the described network equipment that described ROID is corresponding to source node, set up and the logical channel L4 of described L2 binding and the mapping relations of described L3;

Or,

Described first Transmit-Receive Unit, also for receiving the notice message that described first equipment sends, described notice message comprises: in the mark of described L3 and the mapping relations of described L1 and L3 at least one, represent the ROID of application and the mark of described redundant entity group of logical channel between protective redundancy group of entities to described destination node;

The described network equipment also comprises:

7th mapping relations set up unit, also for according to the mark of the described redundant entity group in described notice message and ROID, determine that L4 is the logical channel between the described network equipment that described ROID is corresponding to destination node, set up the mapping relations of described L4 and described L3.

32. network equipments according to claim 27, is characterized in that,

Described first Transmit-Receive Unit, also for receiving the notice message that another network equipment described sends, described notice message comprises: in the mark of described L3 and the mapping relations of described L1 and L3 at least one, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group;

The described network equipment also comprises:

8th mapping relations set up unit, for according to the mark of the described redundant entity group in notice message and ROID, set up the mapping relations of described L4 and described L3;

Or,

Described first Transmit-Receive Unit, also for receiving the notice message that another network equipment described sends, described notice message comprises: in the mark of described L1 and the mapping relations of described L1 and L3 at least one, represent the ROID of the application of the configuration information for consulting redundant entity in redundant entity group and the mark of described redundant entity group;

8th mapping relations set up unit, for according to the mark of the described redundant entity group in notice message and ROID, set up described L4 and described L1 mapping relations.

33. network equipments according to claim 27, is characterized in that,

Or,